in these fields lies a conflict over the science this fifth generation former uses. >> by buying these seeds we use much less herbicides and sometimes not at all. >> reporter: the seeds are genetically modified to resist insects and require less water. >> the only way we can survive in california is we have to be on the cutting edge of the latest technology. >> reporter: at the strauss family farm, organic dairy farmer albert strauss is pushing back against genetically modified technology. >> i have my own concerns about what affects it has on land, what affects it has on animals. >> reporter: he worries that bio engineering crops can contamination organic crops like his cow's feeds. these two california farmers represent the two sides of this war. people have if right to know if their foods is made from gmo. >> we're saying put it on the label and let people make choices for themselves about what they buy and eat. >> reporter: but opponents say requiring labels on genetically modified foods will make people think they are not healthy. >> by putting a scary sounding label on food produ